Automatic firearm.



A P. MAUSER.

AUTOMATIC EIREARM. APPLICATION FILED P31142, 1913.

1,125,578. Patented Jan.19,1915.

MM. M

PULMAUSER, OF OBERNDORF-ONf-THE-NECKAR, GERMANY.

AUTOMATIC FIREARM.

To all wh 0m. it may concern Be it known that I, PAUL MAUSER, royal privy commercial councilor, subject of the King of Wurttemburg, residing at Obern- 'dorf-on-the-Neckar, inthe Kingdom of Vurttemberg, German Empire, have invented certain new and useful Improvements in Automatic Firearms, of which the following is a specification.

The invention relates to automatic fire-` arms in Which the trigger is automatically locked when the breech is not closed so that firing is only possible when the'breech is closed.

The invention consists in improved meansfor locking and releasing the triggern An embodiment of the invention is illusf trated in the accompanying drawing, the breechlocking mechanism and general constructionbeing similar to that vdisclosed in my United States Patent No. 1,091,857, dated March 3l, 1914.

Figure l is a side elevation (partly in longitudinal section) of a pistol provided with a trigger `lock in accordance with the rocatory breech block having an "abutment v" thereon, l) locking levers, and s a slideadapted to move the locking levers Z) into and out of locking engagement with the abutment -vr of the Ybreech block. A spring s normally presses the slide s rearwardly so as to press the locking levers b into engagement with the abutment e. The inertia. of the slide keeps it from moving when the gun recoils upon discharge and causes the slide to act upon the lockingl levers b in such manner as to throw them outwardly out of engagement with the abutment r to release the breech block. The breech block thereupon opens under recoil, and is closed by the spring Z. Y

e is a trigger pivoted at e', having an arm 'lc pivoted thereto at 7c3. The trigger arm ,7c

Specification of Letters Patent. I Patented J 331,19, 1915. Application led February12. 1913. .Serial N o. 747,919.

has an extension 7:2 thereon which is adapted to coact with the stop p which is conveniently formed as a horizontal extension upon a plate p1 fixed upon' apart of the frame and forming a cover for the trigger mechanism. The triggerfarm 7c is pressed upon by a spring k1 in such manner as to vmove 1t outwardly when it is free to move.

l/Vhen the breech i-svclosed and the=lock ing levers are in locking position, theslideis`pressed rearwardly by thespring s against the trigger arm lc.. The pressure of the spring 31 overcomes they pressure of the spring 101 and causes .thetrigger arm ,lo to move inwardly to -the'position shown in Fig. 2. In this position the elitension la? is clear of the stop 15 and j,is freeto move through the space 722 when the trigger is pulled. Consequently when the breech parts are in locking position the trigger is Ifree, and maybe 'pulled to' release the firing mechanism. vVhem however, the locking levers l) are not in locking position (asshown in Fig. 7) the slide s is in its forward position '(see Fig. l), and does not press against the trigger arm 7;. Thel'spring .li is therefore lfree to press the lever armjc, outwardly. In -this position'the stop p is in the way of the extension 7a2 and prevents the trigger from turning far enough upon its pivot, when pulled, tov release the.y l'firing mechanism.

lVhat is claimed is:-

l.' In an automatic firearm, the combination of atrigger, a stop, a movable part carried by said trigger y and adapted to 'be moved into and out of engagementV with said stop, and a breech locking mechanism adapted to move said movable part on the trigger out of engagement 4with said stop.

2. In an automatic firearm, the combina.- tion of a trigger. a stop, a movable part carried by vsaid trigger 'and adapted to be moved into and. out of engagement with said stop, a spring adapted to press said movable part into locking engagement with said stop, and a breech locking mechanism adapted to lmove said movable part on the trigger out of engagement with said stop against thea'ction of said spring.

3. In an automatic firearm, the combination of a trigger. a stop, a movable part carried b v said trigger and adapted to be moved into and out ot engagement with said stop, a. breech block, means for locking said breech block. and recoil operated means for actuatingv saidbreech 'block locking means and adapted to move said movable part on the trigger out of engagement with said stop.

4. In an automatic firearm, the combination of a trigger, a. stop, a movable part carried by said trigger and adapted to be moved ,into and out of engagement with said stop,'a breech block, locking levers for said breech block and recoil operated means for actuating said locking levers and adapted to moveisaid movable part on the trigger ont'of engagement with said stop.

' 5. In an automatic firearm, the combination of a .tri-g er, a'stp, a movable part .carried by sai moved into andout oli engagement with said stop, a breech block', locking levers for said breech block, and a recoil operated slide for actuating'said locking levers and adapted to move said movable [part on the trigger out of engagement With said stop.

6. In an automatic firearm, the combination of a trigger, a stop, an arm pivoted to said trigger and adapted to be movedvinto and out 'of lengagement'. with said stop, and la-breech locking mechanism adapted to move said pivoted arm out of engagement with said stop.

7. In an automatic firearm, the comb1nation of a trigger, a frame, a movable part l trigger and adapted to be reame carried #by said trigger and'a'dapted to be moved into and out of engagement with said frame, and a breech locking mechanism adaptedl to move said movable part on the trigger out of engagement with said frame. 8. In anantomatic firearm, the combination of a trigger, a frame, a stop on said frame, a movable part carried by said trigger and adapted to be moved into and out of engagement witlrsaid stop, and a breech locking mechanism adapted to move said movable part on the trigger out of engagement with said nstop.

9. In an automatic rearm, the combination of a frame, a stop on said frame, a trigger, a movable part carriedby-said trigger and adaptedto be moved into and out of engagement with said stop, a spring adapted to press said movable part into locking en gagement With said stop, a breech block, locklng leversfor' said breech block, and.

a recoil operated slide for actuating said locking levers and adapted to move said movable part on the trigger out ofengagcment with said stop. Y,

In 'testimony whereof I have aixed lmy signature in presence of two Witnesses.

l PAUL MAUSER.

Witnesses: l

HENRY Hasrna, WOLDEMAR HAUPT. 

